 # Let S be the set of all strings of a ' s and b ' s . Define f : S → Z as follows: For each string s in S f ( s ) = { the number of b ' s to the left of the left-most a in s 0 if s contains no a ' s . Find f ( a b a ) , f ( b b a b ) , and f ( b ) . What is the range of f ? Define g : S → S as follows: For each string s in S . g ( s ) = the string obtained by writing the characters of s in reverse order. Find g ( a b a ) , g ( b b a b ) , and g ( b ) . What is the range of g ? ### Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
Publisher: Cengage Learning,
ISBN: 9781337694193 ### Discrete Mathematics With Applicat...

5th Edition
EPP + 1 other
Publisher: Cengage Learning,
ISBN: 9781337694193

#### Solutions

Chapter
Section
Chapter 7.1, Problem 27ES
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